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' (ModeL) JIV B. WILSGN. i TOOL FOR -FORMING BOTTLE LIPS AND NEGKS.

Patemed Mar 25, 1884.

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' wn'NEssEs; QmwQuBQ/If UNrTEn Srn'rns PATEN? ta-rent JosEPH B. WrLsoN, on oLAYToN, NEW JERsEY.

TOOL FORFORMING BOTTLE LlPSANDNECKS'.

SPECIFICATION forming part of Letters Patent No. 295,84-8, dated March ,25, 1884.

Application filed September 14, 1883. (ModeL) i To all whom, it ma'y concern.

Be it known that I, JosEPH BAREFORD WIL- soN, a citizen of the United States, residingat Olayton,in the county of Gloucester and State of New Jersey, have invented certain new and This invention relates to that class of tools or implements used by glass-blowers for shaping and finishing the lips of glass vessels, such as bottles and jars; and it has for its object the cheapening in cost, by simplifying the coustruction, their greater durability, and the facility of adjustment to compensate for wear, and to adapt the instrument to different diameters of months required in glassware.

It has been found by experience that the steel bow or Spring by whichthe jaws of such instruments are connected becomes weak at the place of greatest flexure, and usually breaks long` before the other parts of the instrument are worn out; and it has also been found by experience that in tools having an epansible plug composed of several parts, or in which the guides for centering the central plug with the jaw are formed in a separate piece or pieces, these parts in working lose their adjustmeut and require a degree of attention and watchfulness on the part of the workmen which interferes with rapid work- 1ng. y i V To overcome these difliculties and imperfections, the nature of this invention consists of a conical shouldered plug of ductile metal having a slot formed therein, which,` being` opened-by the insertion of wedge-shaped tools, expands the cone diametrically, and .in

`guides forming an integral piece with the t said shouldered cone, projecting and sliding through slotted apertures in the shanks or shafts bearing the jaws, and in a screw-shaftl formed also as an integral piece with the said shouldered cone, by which the lengthwise adj ustment of the cone and shoulders in relation to the spring and j aws is effected. The spring or bow is formed of metal not easily suscepti-` ble of corrosion, and' permanently secured to the shanks or shafts of the jaws by riveting.

I will now proceed to particularly describe the mode of making and using the said invention, referring in so doing to the drawings annexed, and theletters of reference marked thereon. t

Figure 1 isa side view of the tool, and Fig. 2 an edge view thereof.

The same letters of reference apply to the same parts in both figures.

A and A' are the jaws, each formecl of the same piece of metal with the shauks B and B', which shanks are riveted at the opposite ends to a spring or bow, O, made of elastic metal not easily corroded, hard-rollecl German silver or brass being found to answer effectually.

D is the plug, being of a conical form at D', and having shoulders D, adapted to rest on the end of a bottleneck, curved guides D3 and D'L, projecting laterally and passing so as to slide freely through slots B:i and B* in the shanksB and B', and a stem, D, terminating in a screw, D, passing through a hole, O', in the center of the spring C, where it is secured by nuts D7 and DS, by which the plug D may be adjusted in the direction of its length in relaton to the jaws A and A', shanks B and B', and springG. Grooved wooden handles E and E' are fitted over` the shanks B and B', and are held thereon by projecting ends O2 and G3 of the spring C, the offsets B, B, BT, and BS, as indicated in dotted lines, in the shanksB and B'providing the requisite space, thefunction ofthe handles E and E' being to protect the hands of the operator from heat. The plug D is slotted at D9 from a point back of its apeX to a point back of the shoulders D2. WVhen it is desired to increase the diameter of the plug D and adapt it to form larger necks on. bottles, a

Wedge or lever is inserted in the slot D, and v the plug D thereby laterally expanded. WVhen it is desired to contract the plug D to form smaller bottle-necks7 it is compressed by hammering or by squeezing it in a smithis vise, the slot D4 closing or narrowing in this Operation.

Having described my invention and the i IOO of glassware, a diametrieallyadjustable slotted plug formed of an ntegral pieee of duotile metal having lateral guides "forming an integral part thereof, substantially as set forth.

8. In a tool for forming the necks and lips of glassware, a dianietrically-adjustable slotted plug formed of an integral piece of duotile metal having a sorewed shank forming an integral part thereof7 and adapted to adjust the same lengthwise in relaton to the jaWs and Spring of such tool, substantially as and for the purpose set forth.

4. An improved implement for forming the necks and lips of glassware, consisting of a JOSEPH B. VVILSON.

Wtnesses:

J. DANIEL EBY, LINN XVHEELER. 

